Bulk Al-Al9Co2 alloys: Microstructure, corrosion behavior and hydrogen evolution kinetics

被引：5

作者：

Palcut, Marian ^{[1
]}

Tomsova, Romana ^{[1
]}

Priputen, Pavol ^{[1
]}

Gerhatova, Zaneta ^{[1
]}

Sahul, Martin ^{[1
]}

Kusy, Martin ^{[1
]}

机构：

[1] Slovak Univ Technol Bratislava, Fac Mat Sci & Technol Trnava, J Bottu 25, Trnava 91724, Slovakia

来源：

CORROSION SCIENCE | 2023年 / 222卷

关键词：

Aluminum; Cobalt; Intermetallics; Polarization; Alkaline corrosion; ALUMINUM-ALLOYS; RAPID SOLIDIFICATION; AL; GENERATION;

D O I：

10.1016/j.corsci.2023.111409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two Al alloys with 1 and 3 at% Co were prepared by arc-melting of Al and Co in argon. The corrosion behavior of the as-cast alloys was studied in a NaOH aqueous solution (0.01 M). Furthermore, a hydrogen evolution was investigated by volumetric measurements. The results were compared with pure Al. The alloy with 1% Co was the least corrosion resistant and evolved most hydrogen. The presence of Al9Co2 in the eutectic facilitated hydrogen evolution and contributed to corrosion activation. The results can be used for the design of Al-Co alloys for hydrogen generation.

引用

页数：12

共 44 条

[1]

[Anonymous], 2010, I REL AL WAT HYDR, P1

[2] The Co2Al9 structure type revisited [J].

Boström, M ;

Rosner, H ;

Prots, Y ;

Burkhardt, U ;

Grin, Y .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2005, 631 (2-3) :534-541

[3] Aluminum-air batteries: A review of alloys, electrolytes and design [J].

Buckingham, Robert ;

Asset, Tristan ;

Atanassov, Plamen .

JOURNAL OF POWER SOURCES, 2021, 498

[4] Corrosion rates and negative difference effects for Al and some Al alloys [J].

Drazic, DM ;

Popic, JP .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1999, 29 (01) :43-50

[5] Aqueous Corrosion of Aluminum-Transition Metal Alloys Composed of Structurally Complex Phases: A Review [J].

Duriska, Libor ;

Cernickova, Ivona ;

Priputen, Pavol ;

Palcut, Marian .

MATERIALS, 2021, 14 (18)

[6] Aluminum alloys: Promising materials in the automotive industry [J].

Fridlyander, IN ;

Sister, VG ;

Grushko, OE ;

Berstenev, VV ;

Sheveleva, LM ;

Ivanova, LA .

METAL SCIENCE AND HEAT TREATMENT, 2002, 44 (9-10) :365-370

[7] RAPID SOLIDIFICATION OF LIGHTWEIGHT METAL-ALLOYS [J].

FROES, FH ;

KIM, YW ;

KRISHNAMURTHY, S .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 117 :19-32

[8] THE FORMATION OF COARSE INTERMETALLICS IN RAPIDLY SOLIDIFIED AL-CO ALLOYS [J].

GARRETT, RK ;

SANDERS, TH .

MATERIALS SCIENCE AND ENGINEERING, 1983, 60 (03) :269-274

[9] Aluminium alloys as structural material: A review of research [J].

Georgantzia, Evangelia ;

Gkantou, Michaela ;

Kamaris, George S. .

ENGINEERING STRUCTURES, 2021, 227

[10] Aluminum-air batteries: A viability review [J].

Goel, P. ;

Dobhal, D. ;

Sharma, R. C. .

JOURNAL OF ENERGY STORAGE, 2020, 28

← 1 2 3 4 5 →